Product OverviewAssembly Materials Automotive & Industrial

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Introduction

Research and Technology – Heraeus is striving for the continuous implementation of new materials and technologies with focus on increased performance, reliability, robustness and environmental compliance.

Through close cooperation with our customers, suppliers and external technology partners as well as research institutes we ensure to include all major technological trends in our developments. We share our product and technology roadmap with our key customers and encourageopen discussion to bring more value to our industries.

Application Technology – this group of specialists is focused on assisting our customer base with application support and process development worldwide.

Our application laboratories in Germany, Singapore and China are equipped with all necessary equipments to provide valuable information. Another key capability is the analytical laboratory with state of the art equipment and tools for failure analysis and in depth material characteri-zation. Whatever the requirements of our customers are, Heraeus has the knowledge, equipment, and analytical capabilities to support. Wherever your needs are, our engineers will come to your place and support you in your environment, fast and reliable.

Content

Whenever you seek materials expertise, Heraeus, as it has done for decades, stands as your guide and partner. With revenues exceeding EUR 22 billion and more than 12,500 employees in more than 120 companies worldwide,Heraeus has stood out for over 160 years as a globally recognized precious metals and materials specialist.

From automotive to applications in industrial, green energy,communication and aerospace electronics – designers of miniaturized systems face the challenge to incorporate expanding functional needs into reduced spaces, combined with the increased reliability requirements.

The Contact Materials Division of Heraeus has been the leading manufacturer of materials for assembly of circuits based on PCBs, ceramic (hybrid, LTCC, DBC) and lead

frame substrates. Throughout the world, Heraeus products are known for their high quality, advanced technology and excellent technical support.

Heraeus supplies a great variety of innovative materials and components of precious metals and other materials, which meet the high requirements of the electronics industry.

Your business will benefit in different ways: Wide range of products Special high reliability products High safety of supply due to powder, flux and paste production in different sites, on different continents Compliance with RoHS regulations Technical support worldwide

Introduction 02

Solder Pastes

Alloys 04

Lead-containing 05

Lead-free 06

Special Products 07

Fluxes 08

SMT Adhesives 09

Conductive Adhesives 10

Products for Power Electronics 11

We work with you

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Solder Pastes: Alloys

Solder Powder – Standard Alloys

Solder Pastes: Lead Containing

Heraeus lead containing solders are available with SnPb37 and SnPb36Ag2. Product range includes also special antitombstone alloys. For special applications e.g. thin Au wire bonding, halogen-free versions are available.

Solder Pastes – Lead Containing

Heraeus offers a full line of no clean, solvent clean and water soluble pastes for surface mount (component assembly), in a variety of alloys and powder particle sizes. These pastes can be reflowed in standard convection ovens and also in vapour phase, vaccum systems etc. The products are optimized for various manufacturing techniques like printing, dispensing, dipping and jetting.

Alloy Melting

temperature

[°C]

Powder type and particle size in [µm] Density Recommended for Remark

3 4 5 6 PCB ceramic

[25 – 45] [20 – 38] [15 – 25] [5 – 15] [g/m3] circuits

Lead-free, SnAg based

InnoRel Innolot® 206 – 218 + + 0 0 7,5 + superior reliability

SnAg3.5Cu0.7Ni0.125Sb1.5Bi3 high field operating temperatures

InnoRel HT1 206 – 218 + 0 0 0 7,4 + superior reliability

SnAg2.5Cu0.5In2KM 2) high field operating temperatures

Sn96.5Ag3Cu0.5 217 + + 0 + 7,4 + SAC standard alloy

Sn95.5Ag4 Cu0.5 217 + + 0 0 7,5 + + SAC with higher Ag-content

Sn99Ag0.3Cu0.7 217 – 227 + 0 0 0 7,3 + SAC with low Ag-content

Sn96.5Ag3.5 221 + 0 0 0 7,4 + + SnAg eutectic

Lead-free, low melting

SnBi58 138 + 0 0 0 8,7 + low melting with Ag

SnBi57Ag1 139 – 140 + 0 0 0 8,8 + + low melting with Ag

Lead containing

Sn63Pb37 183 + + 0 + 8,8 + eutectic SnPb

Sn62Pb36Ag2 179 + + 0 0 8,8 + + eutectic SnPbAg„+“ standard alloys/powder sizes „0“ available upon request 2) KM = cristall modifier

Paste Series Water cleanable

D 377 F381 F917 F10 F541

Application

Printing + + + + +

Dispensing + +

Solder Paste Properties

Halogen-free +

J-STD-004 classification LO M1 LO LO H1

Reflow in air + + + + +

Reflow in nitrogen + + + + +

Vapour phase + + +

Anti-tombstone alloy + +

Superior wetting + ++ ++ +++ +

Very clear flux residues ++ ++ + ++ n/a

Easy cleaning + + + +

No Clean

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InnoRel series are high reliability lead-free alloys for applications on epoxy based PCBs and on ceramic sustrates. InnoRel with the Innolot® alloy SnAg3.5Cu0.7Ni0.12Sb1.5Bi3 is recommended for PCBs, for ceramics e.g. hybrids, LTCC or DBC we recommend InnoRel with the HT1 alloy SnAg2.5Cu0.5In2 (SnAgCuIn plus cristall modifier).

Outstanding WettingSpecial SolderPro flux series provides outstanding wetting in air and nitrogen, also on difficult to solder surfaces like NiPd, NiPdAu and NiAu.

Lead-free pastes are available in a wide range of different SnAgCu alloys and SnAg3.5 eutectic alloy. Product portfolio includes InnoRel series, SolderPro series and low melting pastes.

Solder Pastes: Lead-free Solder Pastes: Special Products

Solder Pastes – Lead-free

Paste Series No Clean Water cleanable

NEW SolderPro

SOP 91121 F 6401) F 645 F 620 F 169 WL 449 F 541

Application

Printing + + + + + +

Dispensing + + +

Solder Paste Properties

Halogen-free + + +

J-STD-004 classification L0 L02) L02) L1 not tested H0 H1

Reflow in air + + + + + + +

Reflow in nitrogen + + + + + + +

Vapour phase + + + + + +

Superior wetting, also in air + + + + +

Excellent wetting on Ni, also in air + ++ + ++

Very clear flux residues + + n/a n/a

Minimizes voiding on BGAs + + +

Minimizes voiding in area soldering + + +

Easy cleaning with water ++ +1) W640 Solder Wire available in different diameters. 2) Tested per Bellcore GR-78-Core, pass

High Reliability

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Fluxes SMT Adhesives

SMT adhesives are used for fixing of components duringwave soldering. Also, in double sided reflow, SMTadhesives help to fix large components. In addition SMT Adhesives can be used for fixing of grid array components e.g. BGA‘s/CSP. This application is also called BGA corner bonding.

Heraeus adhesives are suitable for all common applicationmethods e.g. printing, dispensing, pin transfer andjetting. They are supplied in a big variety of cartridgesfor all common machines.

Solder Fluxes for Rework, Power Electronics and Flip Chip Attach SMT Adhesives

Type of Adhesive 1) PD 955 PY PD 955 PRM PD 955 M PD 205A-Jet PD 977 PD 208 PR PD 208 M

Application method

Stencil printing ++ ++ + ++

Dispensing 2) ++ ++3) + ++

Pin-transfer +

Process

Very high green strength ++ + +

AOI (automatical optic inspection) + + + + + +

Lead-free soldering ++ ++ + + + ++ +

Good adhesion with difficult-to-glue components ++ ++ ++ + ++ ++

Low temperature curing +

Easy cleaning of stencils + + +

Recommended for BGA/CSP … corner bonding + ++

Physical properties

Halogen-free 4) + +

Colour yellow pink red red red orange red1) The most suitable products for the particular application method are indicated with “++”.

2) For critical glass diodes, PD 860002 SPA is recommended.

3) Recommended for dispensing with Jet-Dispenser (e.g. Asymtek, Mydata)

4) Acc. to IEC 61249-2-21

Flux No Clean Water cleanable

NC 5070 SF36 SF64 SURF 20 TF 38 TFD 54 WSD 3810-CFF

Application

Rework- manual, cartridge + + + + + +

Rework -manual, pen +

Power Electronics -prinintg

Flip Chip, Dip fluxer + + +

Flux Properties

Halogen-free + + + + + +

Paste or gel + + + + + +

Liquid +

J-STD-004 classification L0 L0 L01) L0 L0 H1 H0

Color of flux residues Clear Clear Clear Clear extremelly clear n/a n/a

Compatible with underfill,

e.g. flip chip/CSP on PCB

+

Solids Content 60 50 60 2.2 18 n/a n/a

Superior wetting + + ++ + + ++

Tackiness ++ + + + ++

1) Tested per Bellcore GR-78-Core, pass

Heraeus offers special paste, or gel and liquid fluxes for rework purposes. These fluxes allow for excellent wetting and leave minimal, non tacky flux residues.

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Conductive Adhesives Products for Power Electronics

Heraeus conductive adhesive are optimized for high reliability applications on ceramic substrates (hybrids, LTCC) and on PCBs.

They enable curing at low temperatures e.g. 120 – 180°C. After curing the assemblies can be used at high field temperatures of e.g. 180°C. Heraeus adhesives enable assembly of SMT components and dies in one step. After curing dies can be connected with bonding wire without previous cleaning.

Conductive Adhesives

Series PC 3000 PC 3001 PC 3002 PC 3431

Process

Screen printing ++ +

Stencil printing + + +

Dispensing ++ +

Curing conditions and key properties

Curing @ 120°C to 180°C + + + +

Superior adhesion + + +

Superior temp. stability ++2) +1) ++2) +1)

Superior thermal conductivity ++ ++ ++ ++

Substrates

Leadframe + ++ + ++

Ceramic ++ ++ ++ +

PCB ++ ++ ++ ++

Flex + ++ + ++1) up to 150°C 2) up to 180°C

Power electronics is used for applications which include high current, high voltage and highest reliability require-ments. Typical applications are alternative drive concepts like hybrid, electric and fuel cell cars and green energy manufacturing e.g. windmills and solar plants.

Other applications include e-bikes and scooters, electrics power steering, start stop systems and control units for high power electric drives, e.g. in escalators.

Power electronics is typically built on ceramic substrates (DBC) or on lead frames. Heraeus produces special lead- free solder pastes optimized for printing of large surfaces

and for minimizing voids when reflowed in vacuum or in normal atmosphere.

The innovative interconnection material mAgic sinter materials enable best performance regarding thermal and electrical conductivity and considerable improved thermal resistance in power cycling compared to solder materials.In addition it is completely lead-free and can replace high lead solder which are still often used in discrete packages and also in power electronics.

For more information on sinter products please see brochure

Microbond Silver Interconnect

ic47

107.86

Solder Pastes for Power Electronic Circuits

Series No Clean Water cleanable

F360 CS 530 PE F 645 F 640 WL449

Process

Vacuum soldering + ++ + +

Nitrogen soldering, no vacuum + ++

Recommended for ceramic substrates ++ ++ ++ ++ ++

Recommended for lead frames ++

Properties

Halogen zero ++ ++ ++ ++

J-STD-004 classification L0 L0 L0 L0 H0

Printing speed for large areas + ++ ++ ++ ++

Superior wetting 0 + ++ ++ +

Excellent wetting on Ni + ++ +

Very clear flux residues / less residues + ++ + + +

Easy cleaning with DI water ++

Easy cleaning with different agents + + (alcaline) + + ++

Heraeus Materials Technology GmbH & Co. KG

Contact Materials Division

Business Unit Assembly Materials

Heraeusstr. 12–14

63450 Hanau, Germany

Phone +49 6181.35-4233

Fax +49 6181.35-7860

cmdinfo@heraeus.com

www.heraeus-contactmaterials.com

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unisThe descriptions and engineering data shown here have been compiled by Heraeus using commonly-accepted procedures,

in conjunction with modern testing equipment, and have been compiled as according to the latest factual knowledge in our

possession. The information was up-to date on the date this document was printed (latest versions can always be supplied

upon request). Although the data is considered accurate, we cannot guarantee accuracy, the results obtained from its use,

or any patent infringement resulting from its use (unless this is contractually and explicitly agreed in writing, in advance).

The data is supplied on the condition that the user shall conduct tests to determine materials suitability for a particular

application.